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J/ApJ/635/950         Radio sources at 8.5GHz                    (Henkel+, 2005)

Completing the counts of radio sources at 8.5GHz. Henkel B., Partridge R.B. <Astrophys. J., 635, 950-958 (2005)> =2005ApJ...635..950H
ADC_Keywords: Galaxies, radio Keywords: cosmology: observations - radio continuum: galaxies Abstract: Most currently available counts of radio sources at frequencies >5GHz are restricted to relatively bright sources. Observations made at NRAO's VLA have, however, provided counts of very faint sources (S≲1mJy) at 8.5GHz. Here we extend the 8.5GHz VLA source counts to higher flux densities using both archival data and a brief, blind VLA survey at 8.5GHz. Description: We arranged to make shallow, wide-area surveys of two regions of the sky at 8.5GHz. These two surveys were inserted during bad weather in the midst of another VLA observing program carried out in the spring of 2003, with the VLA in its D configuration. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 63 47 Sources at 8.5GHz table3.dat 45 31 Spectral indices for shallow survey sources notes.dat 80 11 Individual notes
See also: VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998) VIII/71 : The FIRST Survey Catalog, Version 03Apr11 (Becker+ 2003) J/AJ/126/2237 : Radio-excess IR galaxies PMN/FSC sample selection (Drake+, 2003) J/AJ/123/2402 : The microJansky sky at 8.4GHz (Fomalont+, 2002) J/ApJ/533/611 : 1.4GHz survey in HDF region (Richards+, 2000) J/ApJ/405/498 : Counts and spectral indices at 8.44GHz (Windhorst+, 1993) Table 1: Archival Data at 8.5GHz -------------------------------------------------------------------------------- Origin Target sources Number of Average rms VLA config. serendipitous noise sources (µJy/beam) -------------------------------------------------------------------------------- Drake Galactic stars 7 ∼30 Various Frail Gamma-ray bursts 7 ∼5 C Guerra GPS sources 2 ∼500 D or C/D Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 2 I2 --- [HP2005] Source identification 3 A1 --- f_[HP2005] Flag on [HP2005] (1) 4 A1 --- n_[HP2005] [*] Indicates a note detailed in notes.dat 5- 15 A11 --- Origin Origin (2) 17- 18 I2 h RAh Hour of Right Ascension (J2000.0) 20- 21 I2 min RAm Minute of Right Ascension (J2000.0) 23- 27 F5.2 s RAs Second of Right Ascension (J2000.0) 29 A1 --- DE- Sign of the Declination (J2000.0) 30- 31 I2 deg DEd Degree of Declination (J2000.0) 33- 34 I2 arcmin DEm Arcminute of Declination (J2000.0) 36- 39 F4.1 arcsec DEs Arcsecond of Declination (J2000.0) 41- 47 F7.4 mJy Scorr Corrected flux 49- 54 F6.4 mJy e_Scorr Error in Scorr 56- 63 A8 sr EffArea Effective area (3)
Note (1): Flag on [HP2005], defined as follows: b = Sources detected below 5σ at 8.5GHz, in particularly noisy images. c = Sources detected above 5σ at 8.5GHz and found in the FIRST catalog (Cat. VIII/71), but with no obvious 4.8GHz counterpart. Note (2): Archival sources are identified by the name of the author who originally made the observations (See Table 1 above). Blind survey sources are identified by the date observed. Note (3): Area in which the source could have been detected above the 5σ (or other) threshold in the relevant image.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 2 I2 --- [HP2005] Source identification 3 A1 --- f_[HP2005] [b] Indicates notes detailed in notes.dat 5- 9 F5.2 mJy S8.5GHz Flux at 8.5GHz 11- 14 F4.2 mJy e_S8.5GHz ? Error in S8.5GHz 16- 20 F5.2 mJy S4.8GHz ? Flux at 4.8GHz 22- 25 F4.2 mJy e_S4.8GHz ? Error in S4.8GHz 27- 31 F5.2 --- Sp-Index ? Spectral index α (8.5-4.8GHz) 33- 38 F6.2 mJy S1.4GHz ? Flux at 1.4GHz 39 A1 --- f_S1.4GHz [c] Flag on S1.4GHz (1) 41- 45 F5.2 --- Sp-Index2 ? Spectral index α (4.8-1.4GHz)
Note (1): A "c" indicates fluxes from NVSS (Cat. VIII/65). All other 1.4GHz fluxes are from FIRST (Cat. VIII/71).
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 2 I2 --- [HP2005] Source identification 4- 80 A77 --- Note Notes
History: From electronic version of the journal
(End) Marianne Brouty [CDS] 06-Sep-2006
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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